[Colinsky]

Certain designs are so good, they just keep going and going. The A-10 is one. The B-52 is another enduring design. I’m sure there are others.

DC-3. Known as the C-47 in its military incarnation. About 400 of them are still flying, seventy years after WWII.

[Snickering Hound]

There is quite a business in putting turboprops on DC-3's.

Jet fuel is more common at remote airports than av-gas.

You typically lose some range though.